All bufferizable ops that bufferize to an allocation receive a bufferization.escape attribute during TensorCopyInsertion.
did you really intent, "may bufferize to", or will "bufferizes to" be better?
perhaps add one more sentence on clarifying "escape", for example
which means the buffer needs to be allocated outside this method
which means the allocation "escape" the scope of the method to the caller
(or something like that
Can't we use this condition to guard the whole analysis?
Yes, this is on purpose. Sometimes we don't know what's going to happen at runtime. Then we should return true here. Extended the comment.